Benjamiu f



- CAMPBELL & 'WHITTIBRL Steam Heater.

N0:."1o5,640. Patented July 26,1870,

N. PETERS, :PNOTQLITNOGRANIER, WASHINGTON. D C.

site to it.

- UNITED STATES PATENT OFFICE.

BENJAMIN 1T CAMPBELL AND CHARLES WH I'ITIER, OF, BOSTON, MASS.

STEAM-H EATER.

Specification forming part of Letters Patent No. 105,640 dated July26,1870.

.To all whom it may concern Be it known that we, BENJAMIN F. CAMP- BELLand CHARLES WHITTIER, both of the city of Boston and State ofMassachusetts,

have invented certain Improvements in Steam- Radiators, of which thefollowing is a specification.

, 0nd, in anew construction of the radiator itself.

We cast a projection, a, on the end of one of the series of members orsections comprising the radiator into which it is proposed to takesteam, and another projection, b, oppo- The latter projection is toreceive the nut part of the valve through which passes the spindle c. Onthe interior of the first projection is fitted a composition bearing,01, beveled to receive the end of the valve-spindle c, which has acorrespondingbevel. The same valve is fittedwi'thin the member of theseries from which the steam passes into the drippipe. This constructionis simple and compact.

In each member of the series of radiators isconstructedadiaphragm,e,whichis casttherein fromoneextremeend towithinashort distance of the other, leaving'only sufticient space for the freepassage of the steam around from one side tothe other of such diaphragm.The passages f f for the inlet and outlet of the steam are consequentlyopposite each other on the same side of each member, but not admittingof a direct flow to each other, except around this diaphragm. Thisconstruction admits of all j the members of theseries being keyed by thekeys 9 g g on the one side and connected together at the other side bysteam-joints, thus admitting of free expansion in one direction withoutdanger of leakage of such joints. Besides, the drip and supply are onthe same side of the radiator, steam being always taken in and let outat the same end and in the same direction, no matter whether the membersor sections of the radiator are of an even or odd number.

. What we claim as new,and desire to secure by Letters Patent, is-

1. The construction of valve and valve-seat within the body of theradiator, substantially as described.

2. The section of radiator constructed with a diaphragm running from oneextreme end to within a short distance of the other, substantially asand for the purpose described.

3. A series of sections of radiator, when keyed at one end and jointedat the other,

substantially as described.

BENJAMIN F. CAMPBELL.

CHARLES WHITTIER.

Witnesses as to Benjamin F. Campbell:

H. H. MOBURNEY, WM. H. HIoKs.

-Witnesses as to Charles Whittier:

CHARLES W.-NEW'roN, GEo. W. WALKER.

